Add 81/4 and 35/9
1st number: 20 1/4, 2nd number: 3 8/9
81/4 + 35/9 is 869/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 9 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 4 × 9 = 36,
81/4 = 81 × 9/4 × 9 = 729/36 - Likewise, for the 2nd fraction, since 9 × 4 = 36,
35/9 = 35 × 4/9 × 4 = 140/36 - Add the two like fractions:
729/36 + 140/36 = 729 + 140/36 = 869/36 - So, 81/4 + 35/9 = 869/36
In mixed form: 245/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/4+70/9 81/8+35/9 81/4+35/18 81/12+35/9 81/4+35/27 81/20+35/9 81/4+35/45 81/28+35/9 81/4+35/63